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<h1 class="entry-title">jQuery.fx.interval</h1>
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						所属分类：<span class="category"><a href="/category/effects/">特效</a> &gt; <a href="/category/effects/custom-effects/">自定义</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/properties/">内部属性</a> &gt; <a href="/category/properties/global-jquery-object-properties/">全局 jQuery 对象的属性</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/deprecated/">弃用</a> &gt; <a href="/category/deprecated/deprecated-3.0/">3.0 版本弃用的 API</a></span>
<span class="pull-right">英文文档：<a href="https://api.jquery123.com/jQuery.fx.interval/" target="_blank">jQuery.fx.interval</a></span>
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<article class="entry property" id="jQuery-fx-interval1"><h2 class="section-title">
<span>jQuery.fx.interval</span><span class="returns">返回: <a href="/Types/#Number">Number</a></span>
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<p class="desc"><strong>描述: </strong>该动画的频率（以毫秒为单位）。</p>
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<span class="version-details">添加的版本: <a href="/category/version/1.4.3/">1.4.3</a></span>jQuery.fx.interval</h4></li></ul>
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<p>这个属性可以设置动画每秒运行帧数。默认是13毫秒。该属性值越小，在速度较快的浏览器中（例如，Chrome），动画执行的越流畅，但是会影响程序的性能并且占用更多的 CPU 资源。</p>
<p>由于jQuery中，该属性是全局性的，因此在没有动画正在运行或停止所有动画时，此属性的变化才能生效。</p>
<p><del><strong>注意:</strong><code>jQuery.fx.interval</code>当前在支持<code>requestAnimationFrame</code>属性的浏览器中没有效果，如谷歌Chrome浏览器11。此问题会在今后发布的版本中得以解决。</del></p>
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<section class="entry-examples" id="entry-examples"><header><h2 class="underline">例子:</h2></header><div class="entry-example" id="example-0">
<h4><span class="desc">让所有动画以更少的帧数执行。</span></h4>
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<pre><div class="container"><div class="line"><code><span class="doctype">&lt;!DOCTYPE html&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">html</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">head</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">style</span>&gt;</span><span class="css"></span></code></div></div><div class="container"><div class="line"><code><span class="tag">div</span> <span class="rules">{ <span class="rule"><span class="attribute">width</span>:<span class="value"><span class="number">50</span>px;</span></span> <span class="rule"><span class="attribute">height</span>:<span class="value"><span class="number">30</span>px;</span></span> <span class="rule"><span class="attribute">margin</span>:<span class="value"><span class="number">5</span>px;</span></span> <span class="rule"><span class="attribute">float</span>:<span class="value">left;</span></span></span></code></div></div><div class="container"><div class="line"><code>      <span class="rule"><span class="attribute">background</span>:<span class="value">green;</span></span> <span class="rule">}</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">style</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">script</span> <span class="attribute">src</span>=<span class="value">"https://code.jquery.com/jquery-latest.js"</span>&gt;</span><span class="javascript"></span><span class="tag">&lt;/<span class="title">script</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">head</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">body</span>&gt;</span></code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;<span class="title">p</span>&gt;</span><span class="tag">&lt;<span class="title">input</span> <span class="attribute">type</span>=<span class="value">"button"</span> <span class="attribute">value</span>=<span class="value">"Run"</span>/&gt;</span><span class="tag">&lt;/<span class="title">p</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">div</span>&gt;</span><span class="tag">&lt;/<span class="title">div</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;<span class="title">script</span>&gt;</span><span class="javascript"></span></code></div></div><div class="container"><div class="line"><code>jQuery.fx.interval = <span class="number">100</span>;</code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code>$(<span class="string">"input"</span>).click(<span class="keyword">function</span>(){</code></div></div><div class="container"><div class="line"><code>  $(<span class="string">"div"</span>).toggle( <span class="number">3000</span> );</code></div></div><div class="container"><div class="line"><code>});</code></div></div><div class="container"><div class="line"><code>  <span class="tag">&lt;/<span class="title">script</span>&gt;</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">body</span>&gt;</span></code></div></div><div class="container"><div class="line"><code><span class="tag">&lt;/<span class="title">html</span>&gt;</span></code></div></div></pre>
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<h4>Demo:</h4>
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